The Department of Water and Environmental Regulation supports Western Australia’s community, economy and environment by managing and regulating the state’s environment and water resources.

Environmentally Sensitive Areas (ESAs) can be viewed using DER's Clearing Permit System Map. Use the below link, zoom into an area or search for an address, and select Layers and click on the shaded areas to view their properties.

Department of Water and Environmental Regulation

The Department of Water and Environmental Regulation is responsible for environment and water regulation, serving as a ‘one stop shop’ for industry and developers, with the aim of streamlining and simplifying regulation.

The Department of Water and Environmental Regulation was established by the Government of Western Australia on 1 July 2017. It is a result of the amalgamation of the Department of Environment Regulation, Department of Water and the Office of the Environmental Protection Authority. This website/publication may contain references to previous government departments and programs. Please email the Department of Water and Environmental Regulation to clarify any specific information.